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53111480 = 2356121767
BaseRepresentation
bin1100101010011…
…0101010111000
310200221100020212
43022212222320
5102044031410
65134210252
71213303652
oct312465270
9120840225
1053111480
1127a86494
1215953988
13b007716
1470a76d2
1549e1b05
hex32a6ab8

53111480 has 32 divisors (see below), whose sum is σ = 121465440. Its totient is φ = 20895360.

The previous prime is 53111467. The next prime is 53111489. The reversal of 53111480 is 8411135.

53111480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53111489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8444 + ... + 13323.

It is an arithmetic number, because the mean of its divisors is an integer number (3795795).

Almost surely, 253111480 is an apocalyptic number.

It is an amenable number.

53111480 is an abundant number, since it is smaller than the sum of its proper divisors (68353960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53111480 is a wasteful number, since it uses less digits than its factorization.

53111480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21839 (or 21835 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 53111480 is about 7287.7623451921. The cubic root of 53111480 is about 375.8917562265.

The spelling of 53111480 in words is "fifty-three million, one hundred eleven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 21767 43534 87068 108835 174136 217670 435340 870680 1327787 2655574 5311148 6638935 10622296 13277870 26555740 53111480